Reply to Midi Fighter Spectra Help Me Please

I Just Bought A Midi Fighter Spectra Before It Comes I Just Want To Know How How To:

How do I get ableton for my midi fighter spectra ?

How do I switch sample packs ? for example if I was using one of Mad Zach's sample packs and If I wanted to switch it how could I do that in ableton ?

I know im a noob.. im new to this